| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has n't been [prep] a | 6 |
|
| 2 | who has not been [prep] a | 5 |
|
| 3 | [Wh pn] has not been [prep] a | 5 |
|
| 4 | who has not been [prep] a | 5 |
|
